Endurance.Net Ridecamp Archives

Wikipedia.  Didn't anyone see the article in the last few days where an employee posting erroneous information in Wikipedia about his boss.  This is not a scientific publication.

Carolyn Burgess

Maryanne Gabbani <msgabbani@xxxxxxx> wrote:

http://en.wikipedia.org/wiki/Mpemba_effect

Interesting stuff. I'd heard this and figured it was silly. Guess not. But apparently it is rather unreliable and dependent on a lot of variables. However, we never really have the problem of frozen anything here.  Unless it's not having enough ice for the gin and tonics.....

Maryanne

Egypt

On Dec 14, 2005, at 11:03 PM, Dbeverly4@xxxxxxx wrote:

In a message dated 12/14/2005 10:51:24 AM Pacific Standard Time, carolyn@xxxxxxxxxxxxxxxxxxxx writes:

Do you really believe this?  Hot water will not freeze faster than cold water. 

Carolyn Burgess

Carolyn, apparently its true.  I did a google search (love google!) and found a ton of information on it.  Here is an excerpt:

 

 

II History of the Mpemba Effect

The fact that hot water freezes faster than cold has been known for many centuries.  The earliest reference to this phenomenon dates back to Aristotle in 300 B.C.  The phenomenon was later discussed in the medieval era, as European physicists struggled to come up with a theory of heat.  But by the 20th century the phenomenon was only known as common folklore, until it was reintroduced to the scientific community in 1969 by Mpemba, a Tanzanian high school student.  Since then, numerous experiments have confirmed the existence of the "Mpemba effect", but have not settled on any single explanation.

Interesting, eh?  :)

 

Sylvia